What reasons were used by Monroe to justify this foreign policy pronouncement, and how do they relate to arguments made during the revolutionary and early republic periods?

The Monroe Doctrine became one of the crucial foundations of American foreign policy over the next century; what was the occasion for Monroe’s articulation of this doctrine, and what were the circumstances motivating its adoption?

What reasons were used by Monroe to justify this foreign policy pronouncement, and how do they relate to arguments made during the revolutionary and early republic periods?